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Published on: June 18, 2021
[Spontaneous intracranial hypotension - a spinal disease]
Charlotte Zander1, Katharina Wolf1, Amir El Rahal1
1Universitätsklinikum Freiburg, Klinik für Neuroradiologie, Freiburg.
Spontaneous intracranial hypotension (SIH) is often underdiagnosed due to varied symptoms. Early MRI and myelography aid diagnosis and treatment, improving patient outcomes and preventing long-term damage.
Area of Science:
- Neurology
- Radiology
- Neurosurgery
Background:
- Spontaneous intracranial hypotension (SIH) is underdiagnosed, presenting diverse symptoms that mimic other conditions.
- Delayed diagnosis of SIH leads to significant physical impairment and potential long-term damage.
Purpose of the Study:
- To provide an overview of the diagnostic workup for suspected SIH.
- To highlight new developments in imaging and therapy for SIH.
Main Methods:
- Selective literature search on PubMed (1990-2023) and clinical experience from a CSF center.
- Two-stage diagnostic workup: noninvasive MRI of head and spine, followed by focused myelography to locate CSF leaks.
- Elimination of intrathecal pressure measurement and gadolinium injection for primary diagnosis.
Main Results:
- SIH primarily affects middle-aged women, often presenting with orthostatic headaches.
- Spinal cerebrospinal fluid (CSF) loss occurs as dural leaks (ventral/lateral) or CSF-venous fistulas.
- Complications include subdural hematomas, superficial siderosis, and brain sagging.
Conclusions:
- Prompt diagnosis and treatment of SIH, utilizing MRI and myelography, are crucial for improved patient outcomes.
- Collaboration with a CSF center is recommended for complex cases.
- Relapses can occur, necessitating follow-up MRI to manage this chronic condition.
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